window.onload=function(){
    var btn=document.querySelector("footer");
    var pops=document.querySelector(".continerBox");
    var xx = document.querySelector(".xx");
    console.log(btn,pops);
    btn.onclick=function(){
        pops.style.display="block"
    }
  
    xx.onclick = function () {
        pops.style.display = "none";
    }





















}